Add templ support (#1122)

* Add support for templ

* Remove file extension `tpl` (conflict with Pan)

* Add quotes and important_syntax

* Update readme

* Add test for templ

README.md

@@ -539,6 +539,7 @@ SystemVerilog
 Slint
 Tact
 Tcl
+Templ
 Tex
 Text
 Thrift

languages.json

@@ -1699,6 +1699,14 @@
       "quotes": [["\\\"", "\\\""], ["'", "'"]],
       "extensions": ["tera"]
     },
+    "Templ": {
+      "name": "Templ",
+      "line_comment": ["//"],
+      "multi_line_comments": [["<!--", "-->"], ["/*", "*/"]],
+      "quotes": [["\\\"", "\\\""], ["'", "'"], ["`", "`"]],
+      "important_syntax": ["templ", "script", "css"],
+      "extensions": ["templ", "tmpl"]
+    },
     "Tex": {
       "name": "TeX",
       "line_comment": ["%"],

tests/data/templ.templ

@@ -0,0 +1,24 @@
+// 24 lines, 13 code, 8 comments, 3 blanks
+package test
+
+templ Foo() {
+	<div id="bar">
+	<!--
+            HTML comments are also allowed.
+        -->
+		<button class={ button() } onClick={ doSomething() }>Baz</button>
+	</div>
+}
+
+/*
+   some css class.
+*/
+css button() {
+	padding: 7px;
+	border-radius: 5px;
+}
+
+// doSomething does something
+script doSomething() {
+    alert("something")
+}